Electric plug receptacle



Se t. 17, 1929. w. s. MAZYER 1,728,623

ELECTRIC PLUG RECEPTACLE Filed Feb. 1. 1922 Patented Sept. 17,1929

UNITED s r TEs v .WALTER.S.-1VIAYER, or PHILADELPHIA, PENNSYLVANIA nnno'rnro rLUG nnonrtrAcLn I Application-filed February 1, 1922. se ial o. 533,450/

jecting part adapted to fit said neck; a conducting yoke disposed in the recessed neck; contact screws or bolts extending through the body from the centres of thesockets therein into engagement with the yoke to hold the same in, position; a conducting screw or bolt extendin centrally through the insulating extension into the yoke; conducting clips engaged between the insulating body and extension in contact with the shell on the extension, and conducting bolts or screws extending through the bodyeccentrically to their sockets to connect the shells therein with the respective clips.

In the drawings, Fig. 1 is a top view of the insulating body with the insulating extension removed there-from to show the recessed neck and the shoulders with the conducting parts therein; Fig. 2 is a part sectional view t he construction taken on the line 2 2 o't Fig. 1; Fig. 3 is a sectional view taken on the line 3 -3 of Fig. 2; Fig. 4 is a side view of the detached insulating extension; Fig. 5 is a view of the bot tom of the extension; Fig. 6 is a perspective view of the conducting yoke detached; Fig. 7 is a top View similar to that shown in Fig. 1 in illustration of a modified construction of the body made in sections adapted to be joined on the line 2 2 of Fig. 1, and Fig. 8 is a side view of the inner part of the section shown in Fig. 7.

As illustrated in the drawings, the 're-. ceptacle comprises the insulating body 1' having therein the converging sockets 2 and thereon the neck or projection 8 together with the shoulders 4 and containing the recess 5. An insulating extension piece or plugfi supported on the body 1 and is provided with the tongue/7 which fits in the part 3, this extension piece containing the recesses 8 which register with the shoulders 4.. Conducting bolts or screws. 9 are passed throughthe holes 10 in the body 1, in line with the axes of the sockets 2 and engage the respectiveends of a metal yoke 11 seatedin the bottom of the recess 5.

A conducting bolt or screw 12 is passed throughthe axial hole 13 inthe extension 6 into. engagement with the centre of the yo re.

Threaded conducting shells in the re spective sockets 2 have in 'their respective bottoms 15 the openings 16 through which project hubs 1? of the body. 1, which hubs serve to position the shellsrand project the lamp contact heads of the bolts 9, passing therethrough, into theshell. Conducting bolts or screws 18 pass through the holes 19 in the bodyl and through thebotton'is of the shells 14: to hold the latter in place and connect them electrically with a threaded metal shell .20 on the part 6, the shell 20 havingthe Ybotto1n21 which rests on the shoulders 1 and the bottom aperture 22 through which the neck 3iprojects and in i which it fits. The bolts 18, which pass through thefbottoin of the shell QO, are on gaged to .angularmetal clips 23 supported thereby and disposed in the recessesi8,.the bottom having the projections Q- if engaged in the reentrant anglesof the clips.

The'inte'gral body 1, illustrated in Figs.

,1, 2 and 3, may bemade in sectionsby dividing it on the line 2" X of F 1 with the production of complementary parts, one of which is illustrated inFigs, 7and 8, such parts 1 being clamped together by bolting through a hole 25. Such a construction is adopted to be molded simply simple apparatus and assembled by few operations.

Inmy improvements, as will be now seen, the connections are simple and made directly by straightbolts. Screw pressure is thereby obtained forsecuringthe desired binding of the parts together excellency of contact I I If desired", changes and additions may be and the consequent made in the construction, as for instance by the use of insulating washers (not shown) between the heads of the bolts 9 and the bottoms of the shells 14 so as to cover the heads of the bolts 18, without departing from my invention.

Having described my invention, I claim:

1v A plug receptacle'having an insulating body containing a plurality of sockets, con-. tact screws passing through said body with heads disposed centrally inv the respective sockets, a conducting member engaged by said screws, a plug comprising an insulating part and a conductingv shell thereon having a flange disposed between said body and plug, a contact screw passing through said part into engagement with said member, conducting shells in the respective sockets and electrically separated from said contact screws, and means for electrically connecting the shells in said sockets with the shell on said insulatmg part, said means 1ncluding conducting screws normal to the surface of and engaging th'e'bottoms of the shells in said sockets and passing in a straight line through said body and the flange of said shell.

2. A plug receptacle having an insulating body containing a plurality of sockets and a recess, an insulating member having a part disposed in said recess, a conducting member in said recess, contact screws engaging said conducting member and extending through said body to the respective sockets therein, a contact screw engaging said conducting member and extending through said insulating member, conducting shells in said sockets and on said insulating member respectively, detachable angular conducting clips electrically connected with the shell on said insulating member and supported by said body, and conducting screws passing through said body and engaging said shells and clips to secure them to said body.

' 3. A plug receptacle having an insulating body provided with a plurality of sockets, a recess, and shoulders, in combination with an insulating plug having a tongue disposed in said recess and recesses registering with said shoulders, a conducting yoke supported in the recess in said body, contact screws passing from said sockets through said body into engagement with said yoke, a conducting screw passing through said plug into engagement with said yoke, a conducting shell on said body, said shell having a bottom disposed between saidplug and body, conducting clips disposed in the recesses of said plug and engaging the bottom of said shell, conducting shells in said sockets in insulated relation to said screws, and conducting binding members connecting said shells last named with said clips.

4. A plug receptacle comprising an insulating bodycontaining angularly disposed sockets having bases integral with said body, a detachable plug, a conducting member housed between said plug and body and secured to the latter by bolts passing through said socket bases into said sockets, a shell on said plug and having inturned parts thereon disposed between said plug and body and secured'to the latter by bolts passing through said inturned parts through said socket bases into said sockets, conducting shells securedin said sockets by the engagement therewith of bolts aforesaid, and a bolt passing through said plug into said first named conducting member and securing said'plug to said body.

In testimony whereof I have hereunto set my name this 26th day of January, 1922.

WALTER S. MAYER. 

